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-rw-r--r--src/Faces.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Faces.c b/src/Faces.c
index b67643d..8d6437a 100644
--- a/src/Faces.c
+++ b/src/Faces.c
@@ -131,7 +131,7 @@ SymBase_SymmetryRegisterFaces (CCTK_INT const sym_table,
symmetry_handle[face] = sym_handle;
if (new_symmetry_zone_width[face] > 100)
{
- CCTK_WARN (0, "Tried to register a symmetry face with a symmetry zone width >100 -- this looks like an error");
+ CCTK_WARN (0, "Tried to register a symmetry face with a symmetry zone width >100 -- this looks like an error. This can be caused by using a symmetry thorn (or the old built-in CartGrid3D symmetries) which does not use CoordBase with new versions of the Carpet driver. Please use a separate symmetry thorn (e.g. ReflectionSymmetry) instead.");
}
symmetry_zone_width[face] = new_symmetry_zone_width[face];
}